Lubricator



H. D. BUYER. LUBRICATOR.

APPLICATION FILED FEB.16, e15. RENEWED mu. 1,304,535.

2 SHEETS-SHEET SAL/K301163430 H. D. BOYEH.

LUBBECAJ'OR. APPLICATION FILED FEB. 16. I916. RfiNEV/ED JAN. 11,3919.

'1,30&,535G Patented May 27, 1919.

2 SHEETS-SHEET 2- Tn s NORRIS PzrzRs 00.. PHOTI7-LI7HO.. vusnmcmu. n. c.

UNITED STATES PATENT OFFICE.

HARRISON 1). BOYER, or FERNROCK, PENNSYLVANIA, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO'LEANDEB. warnnnn, or GLEN RIDDLE, PENNSYLVANIA.

LUBRIGA'IJOR.

Specification of Letters Patent.

Application filed February 16, 1916, Serial No. 78,577. Renewed January 11, 1919. Serial No. 270,757.

To all whom it may concern:

Be it known that I, HARRISON D.'BOYER, a citizen of the United States, residing at Fernrock, in the county of Philadelphia and State of Pennsylvania, have invented new and useful Improvements in Lubricators, of which the following is a specification.

My invention relates to new and useful improvements in lubricators, and especially to that class of such lubricators as utilize a plunger for forcing the lubricant into the bearing, and a semaphore adapted to signal when the feeding of the lubricant ceases.

My invention has for its object to provide an improved construction of plunger-actuating mechanism, for lubricator cups, having a new mode of operation relatively to the cup body and to a semaphore or signal device forming. an adjunctive element of the plunger actuating means; and to these ends my invention consists in dividing-the plunger carrying and actuating element so that it shall consist of a plunger rod and co-acting tubular means, an operating screwthreaded connection between one of said divided elements and the apertured top wall of the cup body and an operating sliding connection between the other of said divided elements and the cup body, one of said divided elements passingentirely through the other, and being adjustable relatively to each other by the threaded member thereof, in combination with a compression spring adapted to be compressed by operation of the screw threaded connection between one of said divided plunger actuating elements and the cup body, and to be released and thereby automatically actuate the plunger, by means of the reversely operating sliding connection between one of said elements and the aperture in the cup body.

In order that those skilled in the art to which this invention appertains may understand how to make anduse the same, I will describe its construction in detail, referring by numeral to the accompanying drawing forming a part of this application, in which Figure 1, is a side elevation of one form of lubricating cup made in accordance with my improvement.

Fig. 2, is a central vertical section thereof.

Fig. '3, is a detail view of the plunger and a portion of the stem, and barrel, illustrating the manner of locking the barrel against accidental rotation after it has been adjusted.

Fig. 4, is a central vertical section of a still further modified form of my invention, showing the position of the operating parts when the cup is empty or off feed.

Fig. 5, is a similar view' taken at right angles to Fig. 4, and showing the position of the operating parts when the cup is on feed.

Fig. 6, is a section at the line 19l9 of Fig. 5. V

Fig. 7, is an elevation of the top of the cup, showing the semaphore omitted.

Since it is obvious that various forms of construction may be designed embodying my improvements, I therefore do not limit myself to the particulars here shown, constructions being shown and described only for the purpose of illustrating my invention.

In carrying out my invention as here shown 1 represents the bottom of-the cup ple into a corresponding-hole in said bearing. Above this nipple is located a regulating plug 3 intersecting the outlet passage l and having a hole 5 therethrough for alinement with the passage 4 when it is set for full feed-and adapted to be turned crosswise of the passage for reducing or cutting off the feed.

6 is the top of the cup and in the construction here shown intended to receive and supply the grease, but which may obviously be only a shallow cap fitted to an extended body. 7 is the plunger fitted to slide in the top and expel the grease therefrom. 8 represents a tubular member threaded through the top of the cup and through this member passes slidingly the stem 9 which projects upward from the plunger and has attached thereto the signaling semaphore 10.

Between the tubular member 8 and the plunger is interposed a spring 11, so that when the grease is forced downward by the plunger through the action of the spring until the limit of the stroke is reached the semaphore will be thrown to a vertical posi- W tion as shown in the drawings, while thereoperation will again compress the spring, thereby resetting the cup and at the same time lowering the signaling semaphore, all of which may be readily understood.

The tubular member 8 may be beveled off as indicated at let in Fig. 3, so that the spring 11 may retard its movements,thus preventing it from backing off after bein set. 3

In Figs. 4:, 5, 6 and 7 I have shown a modification of my invention which, however, is merely a reverse arrangement, but in the same operative relation, of the divided plunger actuating members, to each other and to the cup element; and in which the stem 9 is threaded through the tubularmember 8 of Fig. 2 and which, in this arrangement of that element is marked 27, which latter is slidable relatively to the container and is provided with a flange 28 upon which the spring 11 is seated, the upper end of the slidable member having pivoted thereto the semaphore 10, as in the other form shown in Fig.2.

In this form of my device, the top wall of the cap is given a'central concavity ordepression surrounding the aperture, and the semaphore 10 is in the form of a ring mounted on the free end of the tubular. sliding. member the ring being brought into contact within the concavity" surrounding said aperture. 'w

The operation of this construction as follows i When the cup, is empty and ready to be filled and set, the slida'ble member, and sem a phore will assume the position shown in Fig. l, but when the cup filled with a lubricant as shown in Fig. 5, the manual rotation of the plungeucarrying stem 9 will force the slidable tubular member 27 upward against the action of the pr ng, lowering the semaphore l0, and as the lubricant is forced from the cup by the action of the spring, a plunger and connected ste n will carry the tubular member slidingly downward within the aperture in the top of the cup and finally throw the semaphore t0 raised or signal position, when the operation of ros t ng the r. ay e epeated In Fig. 7 the same construction as just de. scribed is shown, in which the semaphore 1,0 is omitted, and the rise and fall of the slidable member 27 utilized as the signal to incate when the cup is off or on feed. as will be readily understood.

While 1' have shown and described these designs for grease cups as standingin a vertical position, it is obvious that they. may be used in a horizontal or at any desired angle which is often found necessary in practice.

Having thus fully described my invention, What I claim as new and useful,'is

l. A lubricator comprising. in combination a container having a top wall centrally apertured, a phmger mounted to reciprocate in said container, and plunger-actuating means consisting of a tubular member inor r y thr aded and. sl de ly upported in said aperture in the'container and projecting therethrough, a screw threaded rod passing entirely through said threaded tubular memher and adapiged to. beoper atively rotated by its projecting end, its opposite end having fired connection with the plunge g for moviug. said plunger in one direction, and a spring becompressed by the Said slidable means and operatin 1 under. said tensional compression te autoniatieally f erce W P hh oppo ite li fo' tioh 2. I n adev ce oi the character stated, a container having a top \vall centrallyaperturfec l, a. plungeiireciproeally movable i i the n aias ii ab e pi' i o insrous said aperture in the CQi miner and having opelhhivoohh oti 'i w th t o Phmso s pporting devices for said sli dahle' meansfa spring adapted to be, put under tension by the manual adjustment of saidoperatively connected plunger and slid-able element and t h u om t lly reread f hs hl by the feedof thefcontainer contents to com- Plo th t ioho o pli he'or' i a sc ar ih -di oot oh, an emaphore h ably'o neo f o aid slidab mes a d adapte th e y on soo C mm i of the h' oh fsns t ke t mo e aid ma ho e o. i nal Posi on- A lu rioa c mprisin a con ain harms an Po-lt irod on ol concavity in its t p. all. a p unger a spring t ac ate the om in a isoharsihg ire ti n, P un carrying means operating. to compress sai pr ng, sa d means consis i g of a slid n t bu a member and a t re ded m mbe ne adj st ymovab W thi the ther, and both slidahl as on W hin a d aper ure i the onta nerwa a d a semaphor pivote oaths treoend of said; li abl membe d ad pted to. ebl ought into. s gna ingcontac with said apertured concavity.

n testim ny wh reofi, I h ve he eun afl xed my s gnature. the. presence. oi a subscribing witness.

nannison 1 BOYE-R.

l/Y-itness MOLLIE TOBIAS.

rie h Pa e ar h b a ned fii? an 59. W. @QIQEZRE i QQBHEifiZZWE 9% Estate. Washington, D. 0. 

